seismic (s) waves are an elastic wave in the earth produced by an earth quake or other means
Immune system is a network composed of cells, tissues, and organs that work together so that the body may be protected from harm. Skin, stomach acid, and mucus all perform to protect the body. The fingernails, being outgrowth of skin, do not perform that much. Thus, the answer is letter D.
Answer:
Heritable variations exist in each population.
Each species seems suited for its particular environment.
A population has more individuals than can be supported by the environment.
Explanation:
Answer:
All plants of purple colour.
Explanation:
All the offspring plants of F1 generation have purple leaves because Ay is dominant allele which appear in the leaf colour instead of A2 which is a recessive allele. In the F1 generation, the dominant allele must appear in the shape and structure of the offspring whereas the recessive allele does not appear so offspring of purple leaves appear if plants have purple leaves cross with white leaves.
Answer:
pyramid-shaped age distribution
Explanation:
- A pyramid shaped age distribution is the shape of the graph constructed for age illustration when the population is growing when arranged in order of their age.
- Endangered species are the one that have a high probability to become extinct in the near future and the recovery plans of the conservation biologists are focused to preserve these species and help them to grow and survive.
- Therefore, if the endangered species are taken under a recovery plan, one would expect to find a pyramid shaped age distribution as the population would steadily grow.